【摘要】 以精确数值模型的计算结果为基准,分析比较温度分层模型和均温模型,得出温度分层模型可以准确预测太阳能跨季节水箱蓄热供暖系统的性能,而均温模型的计算结果偏差较大。基于温度分层模型,以北京市某一供暖建筑为例,分析研究太阳能集热面积、水箱埋入土壤深度和保温材料厚度对系统太阳能保证率及各部分性能的影响规律,为太阳能跨季节水箱蓄热供暖相关实验以及示范工程的建立提供设计依据。更多还原

【Abstract】 The temperature stratification model and the uniform temperature model were analyzed and compared based on the results of the accurate numerical model. It is found that the temperature stratification model can predict the performance of the solar heating system with seasonal water tank heat storage accurately,but the uniform temperature model will cause relatively large deviation. The temperature stratification model was applied to analyze the influence of the solar collector area,the water tank embedded depth and the thickness of thermal insulation material on the performance of the solar heating system with water tank seasonal heat storage located in Beijing. The results will provide a design basis for the related experimental and demonstration projects.更多还原